CN102937179B - Planetary gear load-balancing device - Google Patents
Planetary gear load-balancing device Download PDFInfo
- Publication number
- CN102937179B CN102937179B CN201210436187.0A CN201210436187A CN102937179B CN 102937179 B CN102937179 B CN 102937179B CN 201210436187 A CN201210436187 A CN 201210436187A CN 102937179 B CN102937179 B CN 102937179B
- Authority
- CN
- China
- Prior art keywords
- planetary gear
- flexible shaft
- load
- planet carrier
- support set
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/2809—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels
- F16H1/2836—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels by allowing limited movement of the planets relative to the planet carrier or by using free floating planets
Abstract
The invention provides a kind of planetary gear load-balancing device, comprise planet carrier, be arranged on the central gear at planet carrier center, along multiple planetary gears of circumferentially evenly installing of planet carrier; Along planet carrier be circumferentially evenly provided with many flexible shafts, the periphery of flexible shaft coordinates the resilient support set of tool for mounting, the outer end bearing set of support set, installs planetary gear on bearing. Planetary gear load-balancing device of the present invention is provided with flexible shaft, coordinates the resilient splicing sleeve of tool for mounting in the outer peripheral edges of flexible shaft on planet carrier, in the time that the load of this planetary gear load-balancing device is bigger than normal, all can there is strain in flexible shaft and support set, thereby the suffered load of each planetary gear is kept in balance. Of the present inventionly can make it bear larger load by flexible shaft and the support set of suitable configurations are set, improve durability and the reliability of this device.
Description
Technical field
The present invention relates to gear transmission technology field, especially, relate to a kind of planetary gear load-balancing device.
Background technology
In gear transmission technology field, planetary transmission has that speed ratio is large, volume is little, bearing capacity high,And be used widely in essential industry departments such as helicopter, wind-power electricity generation, metallurgy, building materials, particularly in helicopter field.The transmission system of current most of helicopter mainly adopts Planetary Gear Transmission.
Existing planetary gear load-balancing device is to adopt stretchy nylon to overlap the mode matching with the axle of planetary gear, realizes each planetTaking turns sharp load is evenly distributed. But the planetary gear load-balancing device of this structure, in actual moving process, when planetary gear bearsLoad when larger, its reliability is not high.
Summary of the invention
The object of the invention is to provide a kind of planetary gear load-balancing device, and to solve planetary gear bearing load, reliability is not when largerHigh technical problem.
For achieving the above object, according to an aspect of the present invention, provide a kind of planetary gear load-balancing device, comprise planet carrier,Be arranged on the central gear at planet carrier center, multiple planetary gears of circumferentially evenly installing along planet carrier; Along planet carrier circumferentiallyEvenly be provided with many flexible shafts, the periphery of flexible shaft coordinates the resilient support set of tool for mounting, the outer end bearing set of support set,Planetary gear is installed on bearing.
Further, flexible shaft and planet carrier are one-body molded, and flexible shaft is hollow shaft.
Further, flexible shaft is provided with bulge loop away from the outer peripheral edges of planet carrier; It is cylindric that support set is, and the first end of support set is establishedHave the first flange collar engaging with the bulge loop of flexible shaft, the second end of support set is provided with the second flange collar of the bearing inner race of engaging bearing.
Further, flexible shaft is 1 ~ 6.
Further, the inside of flexible shaft coordinates installation one lock pin.
Further, it is cylindric that lock pin is, and one end of lock pin is provided with the lock pin head engaging with planet carrier, and lock pin inside is provided with lockPin is divided into two-part baffle plate.
Further, lock pin is away from the place end of the planet carrier locking nut that is threaded, the axle of the end face contact bearing of locking nutHold inner ring, splicing sleeve and flexible shaft.
Further, bearing is aligning seat bearing.
The present invention has following beneficial effect:
1, planetary gear load-balancing device of the present invention is provided with flexible shaft, coordinates installation to have in the outer peripheral edges of flexible shaft on planet carrierFlexible splicing sleeve, in the time that the load of this planetary gear load-balancing device is bigger than normal, all can there is strain in flexible shaft and support set,Thereby the suffered load of each planetary gear is kept in balance.
2, the present invention, by flexible shaft and the support set of suitable configurations are set, can make it bear larger load, improves this deviceDurability and reliability.
3, aligning seat bearing can make in the time that deflection in a small amount occurs planetary gear, and planetary gear distributes all along facewidth direction loadEven.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage. BelowWith reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing of a part that forms the application is used to provide a further understanding of the present invention, illustrative examples of the present invention andIts explanation is used for explaining the present invention, does not form inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is the structural representation of the planetary gear load-balancing device of the preferred embodiment of the present invention; And
Fig. 2 be the preferred embodiment of the present invention planetary gear load-balancing device partly cut open schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the present invention can be defined by the claims and coverMultitude of different ways implement.
Referring to Fig. 1 and Fig. 2, the preferred embodiments of the present invention provide a kind of planetary gear load-balancing device, comprise planet carrier 10,Be arranged on the central gear 20 at planet carrier 10 centers, multiple planetary gears 30 of circumferentially evenly installing along planet carrier 10; FollowStar frame 10 be circumferentially evenly provided with many flexible shafts 40, the outer peripheral edges of flexible shaft 40 coordinate the resilient support set 50 of tool for mounting,The outer end of support set 50 is bearing set 60 again, and planetary gear 30 is installed on bearing 60. Planetary gear load-balancing device of the present invention is logicalCross the flexible shaft 40 that is arranged on planet carrier 10 and coordinate be arranged on flexible shaft 40 outer peripheral edges there is flexible splicing sleeve 50,Realize being uniformly distributed of load.
Planet carrier 10 is in the form of annular discs, and planet carrier 10 center is provided with hollow shaft, for loading the central gear 20 of driven load.Along planet carrier 10 many flexible shafts 40 are circumferentially evenly set.
Usually, the radical of flexible shaft 40 is 2 ~ 6. Flexible shaft 40 is one-body molded with planet carrier 10, to facilitate processing. SoftProperty axle 40 is hollow shaft, and flexible shaft 40 is provided with bulge loop 41 away from the outer peripheral edges of planet carrier 10.
Support set 50 is arranged on the outer end of flexible shaft 40, when the load of bearing when this planetary gear load-balancing device is bigger than normal, and flexible shaft40 and support set 50 all can there is strain, thereby the suffered load of each planetary gear 30 is kept in balance. Support set50 are cylindric, and the first end of support set 50 is provided with the first flange collar 51 engaging with the bulge loop 41 of flexible shaft 40, support set 50The second end be provided with the second flange collar 52 of the bearing inner race that is fastened on bearing 60. The engaging of the first flange collar 51 and the second flange collar 52 is solidDetermine support set 50 to be axially fixed on flexible shaft 40.
Bearing 60 is sleeved on support set 50, and usually, selected bearing 60 is aligning seat bearing, will work as planetary gear30 occur in a small amount deflection time, aligning seat bearing can regulate automatically, and planetary gear 30 is distributed all along facewidth direction loadEven.
The inside of flexible shaft 40 coordinates installs a lock pin 70. Lock pin 70 is cylindric, periphery circle and the flexible shaft 40 of lock pin 70Interior week circle coordinate. One end of lock pin 70 is provided with the lock pin head 71 engaging with planet carrier 10. In the present embodiment, planet carrier10 end is provided with mounting groove, and lock pin head 71 is vertical cylinder the boss towards cylinder outer end protrusion, above-mentioned boss and installationGroove just engages, so that lock pin 70 and planet carrier 10 are fixed. Lock pin 70 inside are provided with lock pin 70 are divided into two-part baffle plate72. Baffle plate 72 can be blocked in the lubricating oil of oilgear in planetary gear load-balancing device of the present invention, is preventing the same of leakage of oilTime store lubricating oil, to make lubricating oil pass through in turn the aperture lubricating bearings 60 on lock pin 70, flexible shaft 40 and support set 50.
Lock pin 70 is away from the place end of described planet carrier 10 locking nut 80 that is threaded, the end face contact flexibility of locking nut 80The end face of the bearing inner race of the end face of axle 40, the end face of support set 50, bearing 60, with by flexible shaft 40, support set 50 andBearing 60 axial restraints.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
Planetary gear load-balancing device of the present invention is provided with flexible shaft, coordinates installation to have bullet in the outer peripheral edges of flexible shaft on planet carrierThe splicing sleeve of property, in the time that the load of this planetary gear load-balancing device is bigger than normal, all can there is strain in flexible shaft and support set,Thereby the suffered load of each planetary gear is kept in balance. By flexible shaft and the support set of suitable configurations are set, can make itBear larger load, improve durability and the reliability of this device. Aligning seat bearing can make to occur in a small amount when planetary gearDeflection time, planetary gear is evenly distributed along facewidth direction load.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, etc.With replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a planetary gear load-balancing device, comprises planet carrier (10), is arranged on the central gear (20) at described planet carrier (10) center, along multiple planetary gears (30) of circumferentially evenly installing of described planet carrier (10); It is characterized in that,
Circumferentially evenly be provided with many flexible shafts (40) along described planet carrier (10), the periphery of flexible shaft described in each root (40) coordinates the resilient support set of tool for mounting (50), the outer end bearing set (60) of described support set (50), the upper described planetary gear (30) of installing of described bearing (60);
Described support set (50) is arranged on the outer end of described flexible shaft (40);
Described bearing (60) is aligning seat bearing;
In the time that the load of planetary gear load-balancing device is bigger than normal, all there is strain in described flexible shaft (40) and described support set (50), keep in balance to make the suffered load of each planetary gear, by described flexible shaft (40) and the described support set (50) of suitable configurations are set, to bear larger load, improve durability and the reliability of planetary gear load-balancing device; In the time that deflection in a small amount occurs described planetary gear (30), described aligning seat bearing makes described planetary gear (30) be evenly distributed along facewidth direction load;
Flexible shaft described in each root (40) is provided with bulge loop (41) away from the outer peripheral edges of described planet carrier (10); Described support set (50) is cylindric, the first end of described support set (50) is provided with the first flange collar (51) engaging with the bulge loop (41) of described flexible shaft (40), and the second end of described support set (50) is provided with second flange collar (52) of the bearing inner race of the described bearing of engaging (60).
2. planetary gear load-balancing device according to claim 1, is characterized in that, described flexible shaft (40) is one-body molded with described planet carrier (10), and described flexible shaft (40) is hollow shaft.
3. planetary gear load-balancing device according to claim 1, is characterized in that, described flexible shaft (40) is 2～6.
4. planetary gear load-balancing device according to claim 1, is characterized in that, the inside of described flexible shaft (40) coordinates installs a lock pin (70).
5. planetary gear load-balancing device according to claim 4, it is characterized in that, described lock pin (70) is cylindric, one end of described lock pin (70) is provided with the lock pin head (71) engaging with described planet carrier (10), and described lock pin (70) inside is provided with described lock pin (70) is divided into two-part baffle plate (72).
6. planetary gear load-balancing device according to claim 5, it is characterized in that, described lock pin (70) is away from the place end of described planet carrier (10) locking nut (80) that is threaded, bearing inner race, described support set (50) and the described flexible shaft (40) of bearing (60) described in the end face contact of described locking nut (80).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210436187.0A CN102937179B (en) | 2012-11-05 | 2012-11-05 | Planetary gear load-balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210436187.0A CN102937179B (en) | 2012-11-05 | 2012-11-05 | Planetary gear load-balancing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102937179A CN102937179A (en) | 2013-02-20 |
| CN102937179B true CN102937179B (en) | 2016-05-25 |
Family
ID=47696093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210436187.0A Active CN102937179B (en) | 2012-11-05 | 2012-11-05 | Planetary gear load-balancing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102937179B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017219614A1 (en) * | 2017-11-06 | 2019-05-09 | Zf Friedrichshafen Ag | Planet carrier with flexible bolts |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2273187A1 (en) * | 1974-05-29 | 1975-12-26 | Vickers Ltd | |
| EP0003894B1 (en) * | 1978-02-16 | 1982-01-20 | Hicks Transmissions Limited | Gear mounting |
| EP0093584A1 (en) * | 1982-05-01 | 1983-11-09 | Hicks Transmissions Limited | Gear mounting |
| CN101865279A (en) * | 2010-06-02 | 2010-10-20 | 重庆齿轮箱有限责任公司 | Mechanism for balancing load of planetary gear by flexible pin shaft |
| CN201610937U (en) * | 2009-12-30 | 2010-10-20 | 南京高精重载齿轮制造有限公司 | Cantilever-type elastic pin shaft device |
| CN101893061A (en) * | 2009-05-20 | 2010-11-24 | 汉森传动系统国际公司 | Planetary gear transmission unit |
| CN202971855U (en) * | 2012-11-05 | 2013-06-05 | 中国航空动力机械研究所 | Device for uniformly loading planetary gears |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1456085A (en) * | 1974-04-18 | 1976-11-17 | Vickers Ltd | Gears |
| DE602006011904D1 (en) * | 2005-08-01 | 2010-03-11 | Timken Co | EPICCLIC DRIVE SYSTEM WITH FLEXPINS |
| EP2252809B1 (en) * | 2008-02-13 | 2016-01-13 | The Timken Company | Epicyclic gear system having two arrays of pinions mounted on flexpins with compensation for carrier distortion |
| DK2283250T3 (en) * | 2008-04-30 | 2012-11-26 | Timken Co | Epicyclic gear system with flex pins |
| KR101089430B1 (en) * | 2008-12-30 | 2011-12-07 | 주식회사 효성 | Planet gear assembly for planet gear system |
-
2012
- 2012-11-05 CN CN201210436187.0A patent/CN102937179B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2273187A1 (en) * | 1974-05-29 | 1975-12-26 | Vickers Ltd | |
| EP0003894B1 (en) * | 1978-02-16 | 1982-01-20 | Hicks Transmissions Limited | Gear mounting |
| EP0093584A1 (en) * | 1982-05-01 | 1983-11-09 | Hicks Transmissions Limited | Gear mounting |
| CN101893061A (en) * | 2009-05-20 | 2010-11-24 | 汉森传动系统国际公司 | Planetary gear transmission unit |
| CN201610937U (en) * | 2009-12-30 | 2010-10-20 | 南京高精重载齿轮制造有限公司 | Cantilever-type elastic pin shaft device |
| CN101865279A (en) * | 2010-06-02 | 2010-10-20 | 重庆齿轮箱有限责任公司 | Mechanism for balancing load of planetary gear by flexible pin shaft |
| CN202971855U (en) * | 2012-11-05 | 2013-06-05 | 中国航空动力机械研究所 | Device for uniformly loading planetary gears |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102937179A (en) | 2013-02-20 |
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Address after: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee after: AECC HUNAN AVIATION POWERPLANT Research Institute Country or region after: Zhong Guo Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: CHINA AVIATION POWER MACHINERY INSTITUTE Country or region before: Zhong Guo |